MD in Cambridge, UK?

You could try contacting Dr. Arthur Lesk or Dr. Cyrus Chothia at
the MRC Laboratory of Molecular Biology, Hills Road, Cambridge, CB2
2QH, UK. They both work on analysis of protein structures and there
are also several crystallographers at the same lab.
Their e-mail are:
Arthur Lesk: aml2 at mrc-lmb.cam.ac.uk
Cyrus Chothia: chc1 at mrc-lmb.cam.ac.uk